Grant Vortex Boiler House 15/26 26kW Oil Heat Only Boiler

Product Description

The Grant Vortex Boiler House 15/26 26kW Oil Heat Only Boiler is a compact and reliable heating solution, ideal for installations in garages, plant rooms, and cellars. Designed with practicality in mind, this floor-standing unit combines Grant’s proven condensing boiler technology with a high-performance Riello RDB burner for efficient and dependable operation.

Featuring a distinctive red powder-coated casing, this boiler is built for durability while maintaining a compact footprint. Its unique heat exchanger and turbulator baffle system enhance efficiency and heat transfer, helping to reduce running costs.

Designed for straightforward installation, the Boiler House range requires no complicated wiring or plumbing, making it a popular choice for installers. It is also compatible with Grant EZ-Fit flue systems, offering flexible installation options.

Why Customers Should Buy This Product

• 26kW output suitable for small to medium-sized homes
• Ideal for garage, cellar, or plant room installations
• Compact floor-standing design for flexible placement
• High efficiency (up to 92.7%) helps reduce fuel costs
• Riello low NOx burner for reliable performance
• Durable red powder-coated casing for long-term use
• Simple installation with minimal wiring and plumbing required
• Compatible with Grant EZ-Fit flue systems
• Biofuel compatible (depending on blend)
• Upgradeable warranty up to 5 years with G1 installer
• Trusted quality from Grant

Key Specifications

• Brand: Grant
• Range: Vortex Boiler House
• Product Type: Oil Heat Only Boiler
• Output: 26kW
• Fuel Type: Oil
• ERP Rating: A
• Efficiency: 90.06% – 92.7%
• NOx Class: Class 2
• Mounting Type: Floor Standing

Dimensions:

• Height: 891 mm
• Width: 370 mm
• Depth: 594 mm

Performance:

• Heat Output: 26 kW
• BTU Output: 88,712 BTU
• CH Condensing Max Output: 26 kW
• Noise Level: 63 dB

Flue Options:

• Max Vertical (125mm): 12 m
• Max Vertical (100mm): 12 m
• Max Horizontal (125mm): 4 m
• Max Horizontal (100mm): 4 m

Features:

• Riello RDB low NOx burner
• Grant patented heat exchanger and turbulator system
• Dual thermostat
• Analogue display
• Compatible with EZ-Fit flue systems
• Distinctive red powder-coated casing
• Solar compatible

Warranty:

• Standard: 1 Year
• Extended: Up to 5 Years (with G1 installer, T&Cs apply)

Installation & Compatibility

• Suitable for traditional heating systems with hot water cylinder
• Ideal for garage, cellar, or plant room installations
• Compatible with Grant flue systems and accessories

What’s in the Box

• 1 x Oil Heat Only Boiler Unit
• Installation Instructions

Important Information

• Heat only boiler – requires separate hot water cylinder and cold water storage tank
• Oil-fired system – requires oil storage tank
• Flue and accessories sold separately unless specified